HELP ME GET A T-SHIRT PLEASE...!!!!!

HELP ME GET A T-SHIRT PLEASE...!!!!!

right....i have a prob guys....i live in the uk....and i want a couple of t-shirts...ok

when i write my cheque....do i make it out in US dollars.....or in UK pounds??????now i know this might sound stupid......but.....if i made it out in UK pounds will it be able to get cashed over in the states????....and vice versa???????